A revised view of sensory cortical parcellation

• DOI: 10.1073/pnas.0305697101
• Publication Date: 2004-02-17T20:32:02Z
• Authors: Mark T. Wallace; Ramnarayan Ramach...; Barry E. Stein
• Keywords: Modality (human–computer interaction); Stimulus modality; Crossmodal

Traditional cortical parcellation schemes have emphasized the presence of sharply defined visual, auditory, and somatosensory domains populated exclusively by modality-specific neurons (i.e., responsive to sensory stimuli from a single modality). However, modality-exclusivity this scheme has recently been challenged. Observations in variety species suggest that each these is subject influences other senses. Using cerebral cortex rat as model, present study systematically examined capability individual be activated Within major domains, incidence inappropriate nonmatching) and/or multisensory was very low. at borders between concentration found whose modality profile matched representations neighboring cortices were able integrate their cross-modal inputs give rise enhanced depressed responses. The results studies are consistent with some features both traditional challenging views organization, they which separated one another transitional zones.